02/25/21

Find the sum of the first 100 terms of the arithmetic sequence
a1=15 and a100=307, answer is a whole number and if steps were provided it would be helpful, having difficulty understanding
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02/25/21

Probability Question (Survey Based)
1. A survey found that 23% of people like reading books, 44% of people like going to the movies, 12% enjoy going hiking, and 19% enjoy traveling. Find the probability that someone liked reading and... more
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02/25/21

Math Mixed Fractions
Which statements below have the same value as 4 3/5 - 2 1/5?Mark all that apply. Group of answer choices(4 - 2) - (3/5 - 1/5)7/5 - 3/5(20/5 + 3/5) - (10/5 + 1/5)(4 - 2) + (3/5 - 1/5) 
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02/25/21

FIRST QUESTION: if triangle XYZ is similar to triangle PMN, what is the value of ∠X when ∠P=30°?

FIRST QUESTION: if triangle XYZ is similar to triangle PMN, what is the value of ∠X when ∠P=30°? SECOND QUESTION: if triangle XYZ is similar to triangle PMN and side X=6, side Y=2, and side... more
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02/25/21

plz help with this
3.)A boat traveled 336 miles downstream and back. The trip downstream took 12 hours. The tripback took 14 hours. What is the speed of the boat in still water? What is the speed of the current?
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02/25/21

true or false question

Suppose you toss a fair coin 50 time and it lands heads 20 times. Determine whether each of the following statements is True or False.a) The Law of Large Numbers says that the coin must land 30... more
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02/25/21

You win a dollar 55% of the time, and your customer wins a dollar 45% of the time. How much profit would you expect to have if 7500 games are played?
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02/25/21

Statisticsssssssssssssssssssss
There were 3 separate eggs, so assume each child has a 50-50 chance of being a boy or a girl. When my neighbor was pregnant, she told me, “There is a 50-50 chance of having same gender... more
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02/24/21

write an equation of the line that passes through the point (8, -1) and is perpendicular to the line pictured
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02/24/21

statistics standard deviation
If the average male height is 69.7 inches, with a standard deviation of 4 inches. Assuming a normal distribution, what would his height be with at least 2 standard distributions from the mean and... more
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02/24/21

Classify each statement below. Select A for always true, S for sometimes true, and N for never true.
The diameter of a circle is also a chord of that circle. -choose-A radius of a circle intersects that circle in two points. -choose-A line that is tangent to a circle intersects the circle in two... more
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02/24/21

The equation of a circle is given by x^2 - 4x + y^2 + 6y = 12 Select, inside, outside, or in to indicate where each coordinate pair is located in relation to the circle.
(-1, -7) choose (-1, 3) choose (5, -7) choose (4, 1) choose
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02/24/21

Someone please help me
Line segment AB has endpoints (7, 2) and (4, 6). What are the coordinates of the point that divides AB in the ratio of 2:3? 1Choice 1 (5.8, 3.6) 2Choice 2 (2.2, 1.6) 3Choice 3 (5,... more
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02/24/21

Point O is the center of the circle in the diagram. What is m∠BCA?
Select the correct answer.A. 80°B. 75°C. 70°D. 65°
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02/24/21

In the diagram...
In the diagram, diameter  intersects chord  at point E such that AE = 2.5 units and DE = 3.4 units. Point O is the center of the circle, and the radius of the circle is 5 units. What is the... more
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02/24/21

Geometry, Circles & Chords
For circle O,  and m∠ABC = 55°.In the figure, ∠AOB, ABO, or BOA and ∠BCO, OBC, or BOC have measures equal to 35°.please select one of the underlined from each
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02/24/21

Select the correct answer.
In the diagram, point O is the center of the circle and  and  intersect at point E. If m∠AOB = 90° andm∠COD = 16°, what is m∠CED?A. 37°B. 48°C. 53° D. 62°
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02/24/21

Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
In this figure, m∠BDA = ___° and m∠BCA = ___°.
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02/24/21

Math Problems x5
Andrew is 8 years older than Christy. In 8 years the sum of their ages will be 90. How old is Andrew now?
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02/24/21

Math Problem x5
The sum of the ages of Shane and Alexandra is 64 years. 11 years ago, Shane's age was 2 times Alexandra's age. How old is Shane now?
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02/24/21

The difference between two numbers is 4. The sum of the smaller number and three times the larger number is 36. What are the two numbers?
Solve the word problem using elimination. Set up a system of equations before solving.
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02/24/21

If the radius of the enclosure is 1,000 feet, what is the approximate area of the sector in which the bison are kept?
It's giving me a circle that is divided into 6 different degrees. 70, 55, 35, 85, 55, but there is one missing.
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02/24/21

standard deviation
Suppose a normal distribution has a mean of 62 and a standard deviation of4. What is the probability that a data value is between 56 and 64? Round youranswer to the nearest tenth of a... more
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02/24/21

Two Proportion z-Intervals
A biologist wants to compare the proportions of rainbow trout infected with whirling disease (an illness of trout and salmon caused by a microscopic parasite) coming from two separate watersheds.... more
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02/24/21

Probability: Normal Distribution Problem.
The mass of waste in filled large dustbin bags is normally distributed with a mean of 6.8 kg and a standard deviation of 1.5 kg. The mass of waste in filled small dustbin bags is normally... more
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